Author Topic: 200-210mm fly wheel question (Read 2970 times)

Peter · « **on:** November 07, 2004, 06:45:12 pm »

when laying both fly wheels on the flat, one seems higher then the other and also there is a difference in the inside depth...why is this so..if installed will it all work out

vwmike · « **Reply #1 on:** November 07, 2004, 09:08:09 pm »

The inertia ring is bigger on the 200mm flywheel. The 210mm flywheel will work with the 210mm clutch, but not with the 200mm one. So, if you want to upgrade it will all bolt together. Just be sure you get an 8v 210mm clutch kit if you're keeping your factory small input shaft transmission (16v, and mk3 2L's had larger trans input shafts).

Cheesetoast · « **Reply #2 on:** November 08, 2004, 03:14:26 am »

ooh so on my 93 td, i was told i need a 16v clutch kit, so i really need a 8v one?

Peter · « **Reply #3 on:** November 08, 2004, 06:22:39 pm »

just seeking to learn here, but why does the inertia ring need to be thicker or heavier...I noticed this difference also between the 2wh&4wh drive subarus....I got a new fly wheel and clutch assembly given to me, so it is good to know that I can use this unit ...Thanks....

Quote from: "vwmike"

The inertia ring is bigger on the 200mm flywheel. The 210mm flywheel will work with the 210mm clutch, but not with the 200mm one. So, if you want to upgrade it will all bolt together. Just be sure you get an 8v 210mm clutch kit if you're keeping your factory small input shaft transmission (16v, and mk3 2L's had larger trans input shafts).

vwmike · « **Reply #4 on:** November 09, 2004, 02:55:41 pm »

That's a good question on the 93. I just checked etka and it lists a specific disk for the 1.9's. I'm not sure why, nor can I really tell the spline size. There is 3 different flywheels listed for that year, which leads to some confusion. As far as I knew there was single pin and dual pin flywheels. The dual pin is the early style (83-92 or so), and the single pin came on the ABA. It has a much larger inertia ring on it. I have heard something about there being a difference between german and mexican production flywheels, but I'm not sure. I'd love to hear if someone has a more clear idea of what this car uses for a clutch.

On the inertia ring - a heavier flywheel will generally allow a car to idle more smoothly, and will carry additional mass which can be good for getting the car moving. I have a Eurospec lightened flyweheel in my GTI, and you have to give it extra gas and kinda feather the clutch more to get started on a hill because the inertia just isn't there to get the car going. If you let out the clutch and try and go you can pretty much just put the gas to the floor and the car won't move. So, on the 2 vs 4 wd subaru thing I would take the guess that the 4wd subaru has a heavier flywheel to help get the car moving more easily with the heavy AWD system. All of that stuff is additional mass to get moving.